Sole-rounding machine



(No Model.) 7 Sheets-Sheet i.

- J. A. CROSBIE.

SOLE RUUNDING MACHINE.

Patented July 14, 1896.

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4.4. OROSBIE. SOLE ROUNDING MACHINE.

No. 564,143.; P44411444 July 14,1896;

THE NORRXS PETERS CO FND70 L|TND., WASHINGTON, D. C.

(No Model.) 7 Sheets-Sl1eet 3 J. A. CROSBIE.

SOLE ROUNDING MACHINE.

No. 564,148. Patented July 14, 1896.

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J. A. GROSBIE.

} SOLE ROUNDING' MACHINE. No. 564,148 Patented July 1 1896-.

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I All/II w \lliim g u UNITED STATES PATENT,

FFICE.

JOHN CROSBIE, OF IiAlVR-ENCE, MASSACHUSETTS, AS SIGNOR TO FRANK F.STANLEY, PRINCIPAL TRUSTEE, OF SYVAMPSCOTT, MASSACHUSETTS.

SO LE-ROUNDING MACHINE.

SPECIFICATION forming part of Letters Patent No. 564,148, dated July 14,1896.

Application filed December 18, 1895. Serial No. 572,494. (No model.)

To ctZZ whom, it may concern.-

Be it known that I, JOHN A. CROsBIE, of Lawrence, county of Essex, Stateof Massachusetts, have invented an Improvement in Sole-RoundingMachines, of which the following description, in connection with theaccompanying drawings, is a specification, like letters on the drawingsrepresenting like parts.

This invention has for its object to provide a novel and improvedrounding-machine, that is, a machine for running around and trimming theedge of a sole to make it conform in shape to a stated form or pattern.

In order that the nature of my invent-ion may be clearly understood,reference may be had to United States Patent to James N.

Moulton, No. 522,166, dated June 26, 1894.

Referring to said patent, particularly to Figures I, 3, and 4: thereof,it will be found that the sole-blank to be trimmed or rounded is clampedbetween suitable upper and lower clamps, the lower one also constitutingthe pattern. The knife is caused to travel around and in contact withthis pattern to trim the sole edge in conformity therewith, said knifebeing mounted upon a slide carried in a swinging member, which latter inturn is pivotally mounted upon a carriage adapted to slide radially onand with relation to a rotatable arm or carrier, a suitable springacting upon the knife slide or holder keeping the parts always pressedtoward the axis of rotation of the arm or carrier, so that theknifealways hugs the edge of the pattern. As the rotatable arm swingsaround its axis two rollers on the swinging members travel in a path-camfixed on the standard and hold the said swinging member in a positionwith its axis at substantially right angles to the axis of the pattern,until the toe is reached, in order that the knife may move out and in tofollow the contour of the pattern, said cam acting to swing the saidswinging member around thetoe just as the knife reaches the toe. Whenthe cam is constructed so as to swing the swinging member around to theopposite side of the pattern just as the knife reaches the toe or heelof the pattern, the knife will, of course, travel freely around the toeand heel of the pattern. If, however, with the same cam a longer patternbe substituted, the swinging member will be swung from one to the otherside of the pattern, or, at least, the cam will attempt to so swing itbefore the knife'has reached the toe or heel, and the result will bethat as soon as the axis of this swinging member, while being carriedfrom one to the other side of the pattern, reaches a position nearly orquite coincident with the side line of the pattern, the knife willthereafter fail to move outwardly on the said swinging member to passaround the toe, and will stick and cause some of the parts to break. Toobviate this difficulty, it has always been necessary in the Moultonmachine to substitute a longer cam when the longer patterns are used, inorder that the swinging member might be held in a line substantially atright angles to the axis of the pattern until the toe should be reached,and then swing to the opposite side of the pattern as the cutter roundsthe toe. This change of cams has involved a loss of time and causedtrouble which I have, by my present invention, sought to avoid.

In studying machines of the Moulton type I have discovered that the samecam may be employed for use in connection with the longer pattern ifsome means were provided to prevent the swinging member H from tooquickly swinging from one to the other side of the pattern, for so longas the said member stands in a position at right angles to, or, it maybe, at an angle of forty degrees, or somewhat less, with relation to theside line of the pattern, the knife will move outwardly in the saidswinging member to follow the pattern without binding and sticking.Ihave, therefore, constructed a machine containing my invention, whichmachine is hereinafter illustrated, wherein I have mounted upon theswinging member, corresponding to that of the Moulton machine, a secondor auxiliary swinging member, which has a swinging movement relativelyto the main swinging member, the knife being mounted upon this auxiliaryswinging member. By providing suitable means, as a cam or cams, forcontrolling the position of this auxiliary swinging member I am enabledto maintain the latterin such an angular position with relation to theedge of the pattern as to permit the knife to freely move outwardly andinwardly thereon, until the toe or heel is reached, notwithstanding themain swinging member may have been, by its fixed cam, swung into such aposition as would in the Moulton machine cause the knife to stick.

In the Moulton machine the tension of the spring pressing the knifeagainst the pattern must be much greater as the knife rounds the toe andheel than while the knife is traveling along the shank of the pattern,and in my improved machine I have provided means for varying the tensionof this spring so that the pressure of the knife upon the pattern shallbe substantially constant at all points in its circumference.

My invention also comprehends novel means for clamping the sole inposition to prevent drawing of the pattern under the action of theknife.

The above, together with other features of my invention, will behereinafter fully described, and set forth in the claims.

In the drawings, Fig. 1 is a side elevation, partially broken away, of amachine containing one embodiment of my invention; Fig. 2, a sectionaldetail 011 the dotted line :0 as, Fig. 1, looking to the left. Fig. 3 isa top or plan view of the head of the machine, showing the pattern, thecams, the knife, and rotating carrier therefor, the same in effect beinga view looking downward from the dotted line m m, Fig. 1; Fig. at, a topor plan view of the cams shown in Fig. 3; Fig. 4a, a perspective view ofthe said cams; Fig. 5, a View corresponding to Fig. 3 with the parts indifferent positions. Fig. 6 is a vertical section on the dotted line at00 Fig. 3, looking toward the right; Fig. '7, a vertical section throughthe clamps and main cam, the section being taken on the dotted line y 1Fig. 3; Fig. 8, a view looking down upon the rotatable arm or carrier,the same showing the main and auxiliary swinging members mountedthereon, and the means for varying the tension of the knife-spring, partof the view being in section; Fig. 9, atop view of some of the partsshown in Fig. 8, the spring-carrying arms and means for varying thetension of the spring being omitted; Figs. 10 and 11, perspective viewsof parts shown in Fig. 9; Fig. 12, an

enlarged sectional detail through the auxiliary swinging member andpattern, the section being on the line at 00 Fig. 3; Fig. 13, aperspective detail of the preferred form of knife; Fig. 11, a horizontalsection on the dotted line y 3 Fig. 1, looking down; Fig. 15, aleft-hand partial side elevation of Fig. 14.; Fig. 16, a detail of thecatch-plate shown in Fig. ll; Fig. 17, a sectional detail of the springand means for varying the tension thereof; and Fig. 18 a diagram showingthe levers, &c., for varying the tension of the spring, to be referredto.

In the embodiment of my invention herein selected for illustration andshown in the drawings, A is a suitable standard, provided with a properbase, said standard at its upper end having secured to or forming partof it an overhanging arm or gooseneckA'. In this gooseneck is journaledin suitable bearings a shaft a, having fast upon its rear end a conicalfriction-disk a, adapted to cooperate witha friction-pulley a looselymounted upon said shaft and adapted to be pressed into and withdrawnfrom contact with said disk at by the rising and falling wedge (ipivot-allymounted upon the upper end of a rod a depending through asuitable bracket a, fast on the standard A and provided at its lower endwith nuts to, between which and said bracket is interposed a suitablespring a tending to normally depress the rod and its attached wedge andthereby release the clutch. The wedge is raised to operate the clutchand support the shaft by means of an arm a fast on a shaft (6, journaled in the standard, said arm acting upon and beneath one or morenuts a threaded upon the said rod a At the front of the machine theshaft (0 is fitted with a suitable handle a, by which it may beoperated, and to hold it in its running position against the action ofthe spring a I have provided said shaft adjacent the handle with aspring-finger a, the end of which moves in a notched opening a in acatchplate a applied to an arm A of the standard. (See Figs. 1, 15, and16.)

Vhen the handle is depressed, the wedge is raised and the clutchoperated to support the shaft, the spring-finger catching in the notchof the catch-plate a By disengaging the spring-finger referred to thespring cfiimmediately moves the wedge to release the clutch and stop themachine.

In order that the machine may be quickly stopped when the clutch isreleased, I have provided the shaft a with a brake wheel or pulley a,which is partially encircled by a brake-strap (L16, connected at one endwith the bracket (i and having its other end adjustably connected withthe extended end of the wedge-operating arm a.

hen the wedge is depressed by the spring a to release the clutch, thesame movement, by depressing the arm a, draws the strap about thebrake-wheel to quickly stop the shaft. IV hen the arm a is raised tooperate the clutch and start the shaft, the same movement releases thebrake.

Referring now particularly to Figs. 1 to 6, inclusive, the arm A of thestandard is fitted to receive and hold the fixed non-rotatable shaft orstud b, about which loosely turns the bevel-wheel Z), in mesh with anddriven by a corresponding pinion l) on the main shaft a. To the hub ofthis bevel-gear b is firmly attached an arm or carrier D which,therefore, rotates with the bevel-wheel Z), said rotatable carrier 1)being provided at its upper side with suitable radial guides for and toreceive the radially-slidin g carriage b (See Figs. 8 and 9.) To thisradially-sliding carriage b I have, in the present instance, pivotedupon the stud 19 what I shall hereinafter denominate as the main swin inmember 19, provided at its end adjacent the axis of the rotatablecarrier with the two rollerstuds 5 which, during the rotations of thecarrier, travel in the cam-groove b in a camplate I)", rigidly securedto the top of the stud or shaft 5, as herein shown, by means of asuitable screw b and the dowel-pins I9 (Shown in Fig. 6.) This cam(hereinafter designated by the reference-letter b constitutes what Idenominate as the main cam, the same being herein shaped (see dottedlines, Fig. 4) to present two long, straight, and parallel runsconnected by circular runs at their opposite ends, and, as herein shown,is substantially like the cam in the Moulton machine, it fulfilling inthe machine herein shown substantially the same functions as the Moultoncam.

In the Moulton machine referred to, the knife-slide is mounted directlyupon the swingin g member corresponding to my member 17, but insteadthereof in my construction, as shown, I mount upon the main swingingmember b another, and what I term an auX- iliary swinging member C, thesame being pivoted to swing about a stud o, rising from the said mainswinging member. This auxiliary swinging member 0 is shown as made up oftwo parts relatively adjustable, the part 0 being shown in perspectivein Fig. 10, the second part 61 being shown in perspective Fig. 11.

In the machine the two parts are positioned asshown in Figs. 6 and 8,wherein the part c is placed upon the part 6?, with the ear d on thepart cl rising through a rectangular guideopening 0 in the part c, theside flange d of the part (I rising at the right-hand side of the partc, as best shown in Fig. 8. The two parts 0 and (Z of this auxiliaryswinging member are connected by a suitable adjusting-screw 0 threadedin the lug d and loosely mounted at its opposite end in a portion 0 ofthe principal part c, the said screw being restrained from longitudinalmovement in the said portion 0 by suitable collars and 0 said screwbeing also provided with a squared or other suitable head 0 by which itmay be rotated and thereby cause movement of the lug d and its attachedpart (1 relatively to the part c.

The part d of the auxiliary swinging member O is shown as provided (seeFig. 11) with two roller-studs d d separated somewhat in planview, (seeFig. 9,) and also arranged horizontally in different planes, that is,with the stud 01 higher than the stud (1 in order that they may actrespectively upon the two upper cam-faces d d, formed upon the exteriorof the cam-plate I), in which is formed the main cam 12 referred to. Theuse of these two cams d and 01 upon the rollers referred to will behereinafter fully set forth.

Referring now to Figs. 2, 3,6, and 10, the

part'c of the auxiliary swinging member is shown provided at its upperside with apreferably dovetail groove in which is arranged to slide thehead 6, (shown in section, Fig. 12,) said headbeing provided at itsinner end, adjacent the axis of rotation of the carrier b referred to,with a suitable projection e, on which is swiveled the shank e of theknife-holder a to which the knife 6 is attached.

In the present instance of my invention the knife 6 is provided with anangularly-extended toe having one side formed to present a series ofsteps a, which cooperate with a corresponding series of steps e on theholder 6 the knife being held in desired adjusted position, determinedby said steps, by a suitable clampin g-plate e and screw a (See Fig.12.) The head e is moved normally to the left, Figs. 6 and 12, holdingthe knife-holder in contact with the pattern f by a suitable spring,shown as a coils, encircling a stud s on an arm 0 of the part c of theauxiliary swinging member, and at its upper end the said spring, asshown, engages a ratchettoothed wheel 5 having its hub s looselysurrounding the said stud s, and having loosely mounted upon its upperend the arm 8 which (see Figs. 3 and 5) engages astud .9 (see Figs. 6and 12) on the sliding head 6.

Viewing now Figs. 5 and 17, the arm 5 has a rearwardly-extending ear towhich is pivoted at s the pawl 8 pressed by a spring 5 into normalengagement with the teeth of the ratchet-wheel 5 so that the action ofthe spring upon the ratchet-wheel s is, through the pawl,communicated tothe spring-arm. A nut 8 threaded upon the hub of the ratchetwheel, (seeFig. 17,) serves to hold the spring: arm in its position, and byrotation of the said-nut, bythe insertion of a suitable pin in one oranother of the sockets s in its periphery, the ratchet-wheel with itsconnected springs may be rotated oneor more teeth of the ratchet-wheelto vary the tension upon the spring, the pawl in each instance retainingthe ratchet-wheel and lever in the new relatively-adjusted position.

At its lower end the spring s engages a disk.

t, which (see Fig. 8) is provided with an ear If, having a stud 1?,which enters a slot i in the hooked lever 25*, fulcrumed at i on thepart c of the auxiliary swinging member 0, said lever t having alaterally-extended ear provided with a preferably roller stud i enteringa slot 25 in the arm 25 of the bell-crank lever pivoted at 25 on the arm0 the other nected system of levers during the operation of the machine,to rotate in one or the other direction the disk t, to which the lowerend of the spring .9 is attached, to counteract the tendency of the arm8 to vary the tension upon the spring. As the cutter follows theirregular outline of the pattern the parts are so arranged that when theknife moves back, thereby tending to tighten the spring, the disk t isby its cam 15 caused to follow around in the same direction to restorethe tension to normal, and vice versa, so that a constant pressure isexerted upon the surface of the pattern instead of the very irregularpressure found in machines as at present constructed.

Referring now to Figs. 1, 6, and 7, the camplate 1)", within thecam-groove b and at opposite sides its center, is shown provided withthe slots h h, diametrically in line and receiving the threaded shanksof the posts h, which posts are retained in adjusted position bysuitable nuts 7L2, threaded upon the lower ends of the said shanks. Theposts it at their upper ends receive loosely upon them the twoleggedstand 713, upon which rests the pattern f previously referred to andherein constituting one of the clamping members, said posts 72/ alsopreferably projecting upwardly through the pattern f to hold the latterin proper position. The cooperating clamping member f is shown removablyattached to a clamping-head f, to which is jointed at f the forked lowerend of a spindle f, rising through the projecting ears A on theoverhanging arm A', and provided between said cars with a suitable fastcollar f between which and the lower ear referred to is interposed aspring f tending to move the said clamping member f normally downwardupon and to clamp the leather shoe-sole Z, placed between the twomembers f and f. At its upper end the spindle f is acted upon by theshort arm of a lever f pivoted to the overhanging arm A at f, and havingits opposite or long arm connected by a suitable link or connecting-rodf with a T-shaped lever f pivoted to the standard at f (See Fig. 1.) Thelower end of the link f is fitted with a projecting toe f adapted tocontact with a portion f of the lever f to form a stop to prevent thelever and link moving into a central position. The arm f of the lever fis connected by a link f with the treadle f fulcrumed to the standard atf".

The lever and link f" constitute in ef feet a toggle, so that when thetreadle is depressed into its position Fig. 1, the link f by lifting onthe lever f throws the latter and the lower end of the link f to theleft into their position Fig. 1, until arrested by the stop f referredto, such movement acting to press with great force the upper clampingmember f upon the leather sole Z, clamping the latter between theclamping memhers f and f with such force as to absolutely preventdrawing of the sole during the cutting or rounding operation.

The upper clamping member f is preferably detachably connected with itshead f in suitable manner, said clamping member in the present instancebeing provided with two holes arranged axially the members, onereceiving the depending pin 5, the other to receive the reduced end of aswinging lockpiece 6, pivoted to the head at7 and normally retained inits position Fig. 7, gripping one wall of its hole in the clampingmember by a suitable spring 8. By swinging this lookpiece 6 against theaction of its spring the clamp f may be released and removed.

The operation of the machine is as follows, viz: The sole to be roundedor trimmed is placed in position between and securely held by theclamping members f and f. The operator now moves the handle a to operatethe clutch and start the machine, rotation of the bevel-gear b in thedirection of the arrow, Figs. 1 and 5, acting to swing the arm orcarrier 17 in the same direction around the pattern. This rotativemovement of the carrier causes the roller-studs b" 0n the main swingingmember I) to travel around in the main cam b Vhile the angular positionof the rotating carrier 13 is constantly changing as it swings in acircle, the main swinging member 1) remains always in a position atright angles to the longitudinal axis of the pattern so long as its tworollers 12 travel in the straight path of the main cam Z1 W'hen shortpatterns are employed, the ends of the patterns approximate in locationthe turns at the end of the main cam 6 so that just as the cutterreaches the heel or toe and is ready to round the same the rollers bswing into said curved end of the cam and turn the main swinging memberquickly around the heel or toe, causing the knife mounted thereupon, andalways pressed with its holder against the pattern by the spring 8referred to, to neatly and accurately follow the heel and toe portion ofthe pattern and trim the sole thereat. In the majority of instances,however, the patterns of varying sizes project to greater or lessdistances lengthwise beyond the cam N, as shown best in Fig. 5, wherethe heel and toe project for nearly an inch, and frequently theprojection is more, beyond the curved end portion of the cam. In suchinstances, in machines as heretofore constructed, the rollers of themain swinging member would reach the curved end of the cam and swinginto said curved end before the knife had approached, say, within one orone and one-half inch of the end of the pattern, the result being that arapid turning of this swinging member from a position at right angles tothe longitudinal axis of the pattern around the end of the cam, intoposi tion approximately parallel with the side of the pattern, wouldcause the knife to clamp and lock against the side of the pattern, frequently causing breakage of parts. This difficulty is avoided in mypresent invention, which will be best understood by reference to IIO d dheld in such angular position with relation to the pattern edge that theknife-carrying sliding head mounted in the said auxiliary swingingmember may still work back and forth to permit the knife to follow thecurved edge of the pattern, and the cams d and d are so shaped that whenthe knife reaches and is ready to round the toe or heel, the auxiliaryswinging member is then, and only then, swung quickly from one to theother side of the pattern, overtaking and passing beyond the angularposition of the main swinging member, the main and auxiliary swingingmembers then assuming the dotted positions Fig. 5. It will thus be seenthat the auxiliary swinging member does not begin to swing from one tothe other side. of the pattern until after the main swinging member haspassed through a considerable portion of its swinging movement, yet whenthe auxiliary swinging member does swing it moves much more quickly thanits main member and reaches the desired'angular position at the oppositeside of the pattern before its main member has reached such position. 7

By my invention, operating asthus described, the auxiliaryswinging'member which carries the knife, by holding its cutting positionon the side of the pattern until the last moment and then swingingquickly to the opposite sideof the pattern, successfully carries theknife around the sharpest or most pointed toes,wherein hasheretoforebeen encountered the greatest difficulty in rounding-machines.

The swinging member which carries the knife, while deriving itsprincipal or approximate movements from the main cam 12 is, however,controlledas to its angular position by its own peculiarly-shaped cams dd, so that its angular position is varied from the normal angularposition which it would otherwise receive from the main cam referred to.

To enable the knife and its holder to freely follow the pattern-surface,I have herein provided a novel oiling device consisting of a piece offelt m, projecting from the end of an oil receiving holder m on the endof an arm pivoted at m to the sliding knifecarrying head, a spring macting to press this felt m, saturated with oil, against the peripheryof the pattern immediately in advance of the knife andits holder. I havealso provided a novel device for lockin g the knifeholder in position,the same being best shown in Fig. 12. Referring to said figure, thedepending shank e of the holder is provided witha reduced neck portion ewhich is engaged by the end of alocking-pin e mounted to slide in thesliding head e and acted upon by a spring e, which presses the said pinnormally into position, engaging the head of the shank and locking theknife-holder in position, yet permitting free rotation of theknife-holder. The pin 6 is provided with a finger-piece e rising througha slot 6 in the sliding head, and by means of which the pin e may beslid back to release the knife-holder shank to enable the same to bereadily removed for sharpening.

When the long patterns are used and it becomes necessary to hold theauxiliary swinging member and its knife-sliding head in an angularposition, differing from the angular position of the 'main swingingmember, in order that the knife may properly round the heel and toe, theauxiliary member must be guided by its own cams d d, but when theshorter patterns are employed this independent movement of the main andauxiliary swinging members is unnecessary, and in such instances theoperator, by means of the screw 0, draws the lug d and its attached maythen be operated practically upon the principle of the Moulton machinedescribed,

the main cam b alone then performing all the work of guiding the parts.

Referring now to Figs. 1 and 14:, I have provided an automatic stop forautomatically disengaging the clutch and stopping the machine after theknife has made a complete round of the sole. This automatic stop-motionconsists, as herein shown, of a handlelike lever 0, pivoted at 0 to thecatch-plate ct and havingits stub end standing normally in front of thespring-finger e in its position in the holding-notch of the catch-plate.A lug 0 on the depending portion of the hub of the bevel-wheel b, atthe'end of a complete rotation of the said wheel, which indicates thefinish of a rounding operation, engages the handle-lever 0 and moves thesame to push the spring-finger a out from its holdingnotch, permittingthe spring a to stop the machine, as described, the lug 0 before themachine comes to a standstill, passing into recess 0 in the lever 0, inorder that the said lever may be freely pushed back by the springiingeras thelatter enters the notch, when the machine is again started.

Referring to Figs. 3 and 7, the stand 7L3 is provided with a steeltongue 71 pivoted to the stand at 77/ and arranged in a suitable recesshaving diverging walls to provide a limited lateral swinging movement tothe said (shown in dotted lines, Fig. 3) being also employed, ifdesired, to vary the limited move ment of the tongue in eitherdirection. These screws are so adjusted that when the tongue is in itsextreme position in one direction its opposite edge lies flush with theedge of the pattern adjacent thereto, so that when the knife moves pastthe sharp-pointedtoe portion of the pattern, which of itself would notfor any considerable period resist the pressure of the spring pressingthe knife against it,it will act principally upon this steel tongue,which will receive most of the pressure and thereby relieve the point ofthe pattern of most of the pressure. As the knife swings around to theopposite side of the point this tongue is by its beveled point thrownagainst the opposite stop-screw, so that its other edge lies flush withthe edge of the pat tern now followed by the knife. The tongue is madeto swing in order that it may be adapted for the different widths orshapes of patterns, so that a single tongue suffiees for all types ofpatterns that need reinforcement near the toe portion.

So far as known to me I am the first, in a rounding-machine, to providea main cam, a rotatable carrier, a swinging m ember mounted thereon andactuated by the said cam, a knife mounted upon the swinging member, withmeans for holding the knife in an alined position, different from theposition it would normally be held in by the cam. I am also the first,so far as I am aware, to employ a plurality of cams to position theknife-carrying members during the travel of the knife around thepattern, as distinguished from a single cam, such as employed in theMoulton machine. I am also the first, so far as I am aware, to providethe rotating carrier with main and auxiliary swinging members, withmeans for moving the same into and holding them in different relativeangular positions, for the purpose specified. I therefore considermyself entitled to claim these features broadly, without limitations inthe way of constructional detail. My invention, there fore, in the aboveand other respects as well, is not limited to the particularconstruction or movement herein shown and described, for it is evidentthe same may be varied without departing from the spirit and scope of myinvention.

I claim 1. A rounding-machine containing the followinginstrumentalities, viz: a pattern, a cam, a rotatable carrier, aswinging member mounted thereon and moved radially thereof by said cam,and means independent of said cam to hold the said swinging member in anangular position or positions at variance with the natural cam-actuatedpositions thereof, substantially as described.

2. A rounding-machine containing the following instrumentalities, viz: apattern, a rotatable carrier, a swinging member mounted thereon, and aplurality of cams acting simultaneously to positionsaid swinging member011 said carrier, substantially as described.

3. A rounding-machine containing the following instrumentalities, viz: apattern, a rotatable carrier, aplurality of cams, a swinging membermounted on said carrier, and connections intermediate the same and saidcams whereby the former is given a movement radially and also angularlywith relation to said carrier, substantially as described.

4:. A rounding-machine containing the following instrumentalities, viz:a pattern, a rotatable carrier, a swinging member mounted on androtatable with said carrier, a cam to vary the radius of the path ofmovement of said swinging member, and means independent of said cam tovary the angular position of said swinging member, substantially asdescribed.

5. A rounding-machine containing the following instrumentalities, viz: apattern, a rotatable carrier, a main swinging member mounted thereon,and its cam, an auxiliary swinging member mounted on said main swingingmember, means to vary the relative angular positions of the two swingingmembers, and a knife mounted upon the said aux-- iliary swinging member,substantially as described.

6. A rounding-machine containing the following instrumentalities, viz: apattern, a rotatable carrier, a main swinging member mounted thereon,and its cam, an auxiliary swinging member mounted on said main swingingmember, means to vary the relative angular positions of the two swingingmembers, and a knife and its sliding head mounted on said auxiliaryswinging member, substantially as described.

7. A rounding-machine containing the following instrumentalities, viz: apattern, a rotatable carrier, a main swinging member mounted thereon,and its cam, an auxiliary swinging member mounted on said main swingingmember, means to vary the relative angular positions of the two swingingmembers, a knife and its sliding head mounted on said auxiliary swingingmember, a spring to press said knife always in operative position withrelation to said pattern, substantially as described.

8. A rounding-machine containing the following instrumentalities, viz: apattern, a knife, means to carry the same around the said pattern, aspring to press the knife always into operative position relatively tothe pattern, and means to automatically vary the spring during movementof the knife about the pattern to compensate for the irregularities inthe contour of said pattern whereby a substantially uniform pressureexerted by the spring is maintained, substantially as described.

9. A rounding-machine containing the following instrumentalities, viz: apattern, a rotatable carrier, a swinging member mounted thereon and itscam, a'knife and its sliding IIO head mounted upon the swinging member,a spring to press the said knife and its head toward said pattern, andmeans to ease on the said spring at one end when the tension isincreased at the opposite end, and vice versa, substantially asdescribed.

10. A rounding-machine containing the following instrumentalities, viz:a pattern, a rotatable carrier, a swinging member mounted thereon, andits cam, a knife and its sliding head mounted upon the swinging member,a spring to press the said knife and its head toward said pattern, and acam, and intervening connecting devices to case on the said spring atone end when the tension is in creased at the opposite end, and viceversa, substantially as described.

11. A rounding-machine containing the following instrumcntalities, viz:a pattern, a r0- tatable carrier, a main swinging member and its cam, anauxiliary swinging member and its cam or cams, and means to hold thesaid auxiliary swinging member out of operative engagement with its camor cams leaving the same under the control of the main-swingingmembercam, substantially as described.

12. A rounding-machine containing the following instrumentalities, viz:a pattern, a rotatable carrier, a main swinging member and its cam, anauxiliary swinging member and its cam or-cams, meansto hold the saidauxiliary swinging member out of operative engagement with its cam orcams leaving the same under the control of the main-swingingmember cam,and means to lock the two swinging members as one when said auxiliarymember is out of operative engagement with its cam, substantially asdescribed.

13. A rounding-machine containing the following instrumentalities, viz:a pattern, a rotatable carrier, a sliding carriage thereon, the mainswinging member mounted on said carriage, and its cam, the auxiliaryswinging two-part member pivotally mounted upon said main swingingmember, a cam or cams acting upon one of the parts of the said auxiliarymember, and adjustable means for connecting said part with the otherpart of said swinging member, the knife and its sliding head mounted onsaid auxiliary swinging member, all to operate, substantially asdescribed.

14. A rounding-machine containing the following instrumentalities, viz:a pattern, a rotatable carrier, a swinging knife-carrying member, andcontrolling means therefor, a knife, the sliding carrying-head thereforand an oiling device pivotally mounted upon said sliding head andadapted to follow said pattern to lubricate the bearing of the knife orits holder thereupon, substantially as described.

15. A rounding-machine containing the following instrum entalities, viz:the standard or frame, the knife, and means to operate the same, theclamping members between which the leather sole is held, the links f andf the lever connecting the same and arranged to form a toggle-joint, andthe treadle, all operating substantially as described.

16. In arounding-machine,the combination with a pattern, and a supporttherefor, of a re- .inforcing member movably mounted on said support torelieve the pattern of a part of the pressure of the knife or its holderthereupon, substantially as described.

17. In arounding-machine,the combination with a pattern and its support,of a swinging reinforcing-tongue to operate, substantially as described.

18. In a rounding-machine, a swinging reinforcing -tongue, andadjustable limitingstops therefor, substantially as described.

19. In a rounding-machine, a swinging reinforcing-tongue having atapering point to enable it to be swung from one to another position bythe parts moving in contact with the pattern, substantially asdescribed.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

JOHN A. OROSBIE.

Witnesses:

FREDERICK L. EMERY, AUGUSTA E. DEAN.

